Adjustable connecting structure for prefabricated stairs

Abstract

The utility model aims to solve the problem of connection of prefabricated stairs, and discloses an adjustable connecting structure for prefabricated stairs, which comprises prefabricated stairs, platform plates and connecting structures, the platform plates are respectively arranged at the top and the bottom of the prefabricated stairs, the connecting structures are arranged in the platform plates, connecting cylinders are arranged in the connecting structures, and the connecting cylinders are connected with the prefabricated stairs. An adjusting screw is installed between the connecting cylinder and the platform plate, a connecting ball is installed at the lower end of the connecting cylinder, through holes are evenly formed in the connecting ball, a through groove is transversely formed in the platform plate, a rotating cylinder is arranged on the upper side of the connecting cylinder, a connecting pipe is arranged between the rotating cylinder and the connecting cylinder, and ejector blocks are evenly installed on the outer surface of the rotating cylinder. Protruding blocks are arranged on the inner surface of the rotary drum. Through the arrangement of the connecting structure, inclination adjustment can be conveniently conducted through the connecting structure, installation and positioning of the prefabricated staircase are more convenient, the prefabricated bolt can be sleeved with a gasket and other parts after positioning, and convenience is provided for installation of the prefabricated staircase.

Description

Technical Field

[0001] The utility model relates to the field of prefabricated stairs, in particular to an adjustable connection structure of prefabricated stairs. Background Art

[0002] Prefabricated stairs are widely used in the construction field. The prefabricated stairs need to be hoisted and then installed on the platform. Generally, the hole positions are located first and then poured. However, when positioning the hole positions, since the reserved holes are made in advance, the hole positions may deviate during installation, which brings inconvenience to the installation of the prefabricated stairs. With the improvement of life, prefabricated stairs are also widely used in families, especially in duplex small high-rise buildings. The connection position of the prefabricated stairs is generally not convenient to adjust. If it is necessary to add gaskets to the prefabricated bolts, the prefabricated stairs need to be hoisted again, which is very inconvenient. Therefore, the inventor invented an adjustable connection structure for prefabricated stairs to solve the adjustment problem of the connection structure of prefabricated stairs. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the prior art and provides an adjustable connection structure for a prefabricated staircase.

[0004] The utility model is realized through the following technical solutions:

[0005] A prefabricated staircase adjustable connection structure comprises a prefabricated staircase, a platform plate and a connection structure, wherein the platform plates are respectively arranged at the top and the bottom of the prefabricated staircase, and the connection structure is arranged inside the platform plate.

[0006] As the preferred technical solution of the utility model, a connecting cylinder is provided inside the connecting structure, an adjusting screw is installed between the connecting cylinder and the platform plate, a connecting ball is installed at the lower end of the connecting cylinder, through holes are evenly opened on the connecting ball, a through groove is horizontally opened inside the platform plate, a rotating cylinder is provided on the upper side of the connecting cylinder, a connecting pipe is provided between the rotating cylinder and the connecting cylinder, top blocks are evenly installed on the outer surface of the rotating cylinder, protrusions are installed on the inner surface of the rotating cylinder, and an adjusting nut is installed on the outer surface of the rotating cylinder.

[0007] As a preferred technical solution of the utility model, the rotating cylinder, the connecting tube, the connecting cylinder and the connecting ball are penetrated, the connecting ball is a hollow structure, and the through hole is an inclined hole.

[0008] As a preferred technical solution of the utility model, through grooves are provided on the platform plate, and inclined rails are evenly installed inside the platform plate.

[0009] As a preferred technical solution of the utility model, the connecting pipe is movably connected to the connecting cylinder and the rotating cylinder respectively.

[0010] As a preferred technical solution of the utility model, the connecting ball is threadedly matched with the connecting tube, and the thickness of the platform plate is greater than the radius of the connecting ball.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model can adjust the angle of the connecting tube in the connecting structure through the setting of the connecting structure, and combined with the through hole as an inclined hole, the prefabricated bolt can be inserted into the connecting structure to achieve connection positioning, and it is more convenient to find the hole position. Because it is an inclined structure, it is more convenient to position the prefabricated stairs. Through the setting of the protrusion, when the gasket is inserted into the bolt that penetrates the connecting structure, it is convenient to push and support the bolt, which is conducive to the installation of the gasket or nut on the bolt. Through the inclined rail in the platform plate, it is convenient to adjust the inclination angle of the connecting tube. The existence of the inclined rail is also convenient for supporting the inclined connecting tube. Through the connection ball and the connection tube thread, the connection ball can be adjusted so that the connection ball sinks into the platform plate. The utility model can adjust the inclination through the setting of the connecting structure, which is more convenient for the installation and positioning of the prefabricated stairs, and the gasket and other parts can be installed on the prefabricated bolt after positioning, which provides convenience for the installation of the prefabricated stairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is an enlarged view of the connection structure of the utility model.

[0015] Figure 3 It is a bottom view of the platform plate of the utility model.

[0016] Figure 4 It is a schematic diagram of the cooperation between the rotating drum and the protrusion of the utility model.

[0017] Figure 5 It is a structural schematic diagram of the inclined rail of the utility model.

[0018] In the figure: A. connecting structure, 1. platform plate, 2. connecting cylinder, 3. adjusting screw, 4. connecting ball, 5. through hole, 6. connecting pipe, 7. rotating cylinder, 8. adjusting nut, 9. top block, 10. through groove, 11. protrusion, 12. inclined rail, 13. prefabricated stairs. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 , the utility model provides a technical solution:

[0021] A prefabricated stair adjustable connection structure comprises a prefabricated stair 13, a platform plate 1 and a connection structure A, wherein the platform plate 1 is respectively arranged at the top and bottom of the prefabricated stair 13, and the connection structure A is arranged inside the platform plate 1.

[0022] A connecting cylinder 2 is provided inside the connecting structure A, an adjusting screw 3 is installed between the connecting cylinder 2 and the platform plate 1, a connecting ball 4 is installed at the lower end of the connecting cylinder 2, through holes 5 are evenly opened on the connecting ball 4, a through groove 10 is horizontally opened inside the platform plate 1, a rotating cylinder 7 is provided on the upper side of the connecting cylinder 2, a connecting pipe 6 is provided between the rotating cylinder 7 and the connecting cylinder 2, top blocks 9 are evenly installed on the outer surface of the rotating cylinder 7, and bumps 11 are installed on the inner surface of the rotating cylinder 7, and an adjusting nut 8 is installed on the outer surface of the rotating cylinder 7. The setting of the connecting structure A replaces the traditional reserved holes, and can be adjusted when connecting the prefabricated stairs, so as to stably connect the prefabricated stairs.

[0023] The rotating cylinder 7, the connecting pipe 6, the connecting cylinder 2 and the connecting ball 4 are interpenetrated, the connecting ball 4 is a hollow structure, and the through hole 5 is an inclined hole.

[0024] The platform plate 1 is provided with through grooves, and inclined rails are evenly arranged inside the platform plate 1.

[0025] The connecting pipe 6 is movably connected to the connecting cylinder 2 and the rotating cylinder 7 respectively.

[0026] The connecting ball 4 is threadedly matched with the connecting tube 2 , and the thickness of the platform plate 1 is greater than the radius of the connecting ball 4 .

[0027] Working principle: When installing the prefabricated stairs in this embodiment, first use a lifting tool to lift the prefabricated stairs 13, and the connecting structure A is installed at the position of the reserved hole opened on the existing prefabricated stairs. The inclined bolts are pre-installed on the platform, and then the bolts are tilted through the through holes 5 to penetrate into the connecting ball 4, and then pass through the connecting tube 2, the connecting tube 6 and the rotating drum 7. By adjusting the adjusting screw 3, the inclination angle of the connecting tube 2 is adjusted in advance, and then the prefabricated stairs 13 is positioned with the support of the inclined rail 12 in combination with the connecting structure A. When it is necessary to pass the gasket and other components through the bolts inserted into the connecting structure A, the rotating drum 7 is rotated, and the bolts are pushed with the protrusions 11 to create a gap between the bolts and the rotating drum 7, and then the rotating drum 7 is continued to be rotated, the protrusions 11 will stop pushing the bolts, so that the gaskets and other components slide off the bolts, and the installation of the gaskets is completed. Through the adjustment of the connecting structure A, the installation of the prefabricated stairs is further facilitated.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated staircase adjustable connection structure, comprising a prefabricated staircase (13), a platform plate (1) and a connection structure (A), characterized in that: The platform plate (1) is respectively arranged at the top and bottom of the prefabricated staircase (13); the connection structure (A) is arranged inside the platform plate (1); a connection tube (2) is arranged inside the connection structure (A); an adjustment screw (3) is arranged between the connection tube (2) and the platform plate (1); a connection ball (4) is arranged at the lower end of the connection tube (2); through holes (5) are evenly arranged on the connection ball (4); a through groove (10) is transversely arranged inside the platform plate (1); A rotating cylinder (7) is arranged on the upper side of the connecting cylinder (2), a connecting pipe (6) is arranged between the rotating cylinder (7) and the connecting cylinder (2), top blocks (9) are evenly arranged on the outer surface of the rotating cylinder (7), a convex block (11) is arranged on the inner surface of the rotating cylinder (7), an adjusting nut (8) is sleeved on the outer surface of the rotating cylinder (7), the rotating cylinder (7), the connecting pipe (6), the connecting cylinder (2) and the connecting ball (4) are penetrated, the connecting ball (4) is a hollow structure, and the through hole (5) is an inclined hole.

2. The prefabricated staircase adjustable connection structure according to claim 1, characterized in that: The platform plate (1) is provided with a through slot, and inclined rails are evenly arranged inside the platform plate (1).

3. The adjustable connection structure of a prefabricated staircase according to claim 1, characterized in that: The connecting pipe (6) is movably connected to the connecting cylinder (2) and the rotating cylinder (7) respectively.

4. The prefabricated staircase adjustable connection structure according to claim 1, characterized in that: The connecting ball (4) is threadably matched with the connecting tube (2), and the thickness of the platform plate (1) is greater than the radius of the connecting ball (4).

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